package hardware.print;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.PointF;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.WriterException;
import com.google.zxing.common.BitMatrix;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.util.HashMap;

public abstract class BarcodeCreate {
    private static int marginW = 20;

    public static BarcodeFormat barcodeFormat = BarcodeFormat.CODE_128;

    public static Bitmap creatBarcode(Context context, String contents, int desiredWidth, int desiredHeight, boolean displayCode, int barType) {
        Bitmap ruseltBitmap = null;
        if (barType == 1)
            barcodeFormat = BarcodeFormat.CODE_128;
        else if (barType == 2) {
            barcodeFormat = BarcodeFormat.QR_CODE;
        }
        if (displayCode) {
            Bitmap barcodeBitmap = null;
            try {
                barcodeBitmap = encodeAsBitmap(contents, barcodeFormat,
                        desiredWidth, desiredHeight);
            } catch (WriterException e) {
                e.printStackTrace();
            }
            Bitmap codeBitmap = creatCodeBitmap(contents, desiredWidth,
                    desiredHeight, context);
            ruseltBitmap = mixtureBitmap(barcodeBitmap, codeBitmap,
                    new PointF(0.0F, desiredHeight));
        } else {
            try {
                ruseltBitmap = encodeAsBitmap(contents, barcodeFormat,
                        desiredWidth, desiredHeight);
            } catch (WriterException e) {
                e.printStackTrace();
            }
        }

        return ruseltBitmap;
    }

    public static Bitmap creatCodeBitmap(String contents, int width, int height, Context context) {
        TextView tv = new TextView(context);
        LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
                width, height);
        tv.setLayoutParams(layoutParams);
        tv.setText(contents);
        tv.setHeight(48);
        tv.setTextSize(25.0F);
        tv.setGravity(1);
        tv.setWidth(width);
        tv.setDrawingCacheEnabled(true);
        tv.setTextColor(-16777216);
        tv.setBackgroundColor(-1);
        tv.measure(View.MeasureSpec.makeMeasureSpec(0, 0),
                View.MeasureSpec.makeMeasureSpec(0, 0));
        tv.layout(0, 0, tv.getMeasuredWidth(), tv.getMeasuredHeight());

        tv.buildDrawingCache();
        Bitmap bitmapCode = tv.getDrawingCache();
        return bitmapCode;
    }

    public static Bitmap encode2dAsBitmap(String contents, int desiredWidth, int desiredHeight, int barType) {
        if (barType == 1)
            barcodeFormat = BarcodeFormat.CODE_128;
        else if (barType == 2) {
            barcodeFormat = BarcodeFormat.QR_CODE;
        }
        Bitmap barcodeBitmap = null;
        try {
            barcodeBitmap = encodeAsBitmap(contents, barcodeFormat,
                    desiredWidth, desiredHeight);
        } catch (WriterException e) {
            e.printStackTrace();
        }
        return barcodeBitmap;
    }

    public static Bitmap mixtureBitmap(Bitmap first, Bitmap second, PointF fromPoint) {
        if ((first == null) || (second == null) || (fromPoint == null)) {
            return null;
        }

        Bitmap newBitmap = Bitmap.createBitmap(first.getWidth(),
                first.getHeight() + second.getHeight(), Bitmap.Config.ARGB_4444);
        Canvas cv = new Canvas(newBitmap);
        cv.drawBitmap(first, 0.0F, 0.0F, null);
        cv.drawBitmap(second, fromPoint.x, fromPoint.y, null);
        cv.save(31);
        cv.restore();

        return newBitmap;
    }

    public static Bitmap encodeAsBitmap(String contents, BarcodeFormat format, int desiredWidth, int desiredHeight) throws WriterException {
        int WHITE = -1;
        int BLACK = -16777216;

        HashMap hints = null;
        String encoding = guessAppropriateEncoding(contents);
        if (encoding != null) {
            hints = new HashMap(2);
            hints.put(EncodeHintType.CHARACTER_SET, encoding);
        }
        MultiFormatWriter writer = new MultiFormatWriter();
        BitMatrix result = writer.encode(contents, format, desiredWidth,
                desiredHeight, hints);
        int width = result.getWidth();
        int height = result.getHeight();
        int[] pixels = new int[width * height];

        for (int y = 0; y < height; ++y) {
            int offset = y * width;
            for (int x = 0; x < width; ++x) {
                pixels[(offset + x)] = ((result.get(x, y)) ? -16777216 : -1);
            }
        }

        Bitmap bitmap = Bitmap.createBitmap(width, height,
                Bitmap.Config.ARGB_8888);
        bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
        return bitmap;
    }

    public static String guessAppropriateEncoding(CharSequence contents) {
        for (int i = 0; i < contents.length(); ++i) {
            if (contents.charAt(i) > 0xFF) {
                return "GBK";
            }
        }
        return null;
    }

    public static boolean saveBitmap2file(Bitmap bmp, String filename) {
        Bitmap.CompressFormat format = Bitmap.CompressFormat.JPEG;
        int quality = 100;
        OutputStream stream = null;
        try {
            stream = new FileOutputStream("/sdcard/" + filename);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }

        return bmp.compress(format, quality, stream);
    }
}